Karen Hassan – Therese
Therese was a Noblewoman of the West Franks who resided at the court of Emperor Charles of Frankia. She also attempted to manipulate Count Odo, eventually becoming his mistress.
She is first introduced in Season 3, appearing at the cathedral praying for the city of Paris.
Jordan Patrick Smith - Ubbe
Ubbe is Ragnar Lothbrok and Aslaug’s very first son who was conceived out of wedlock. Though he may be considered a bastard, he eventually was considered as Ragnar’s legitimate son and heir.
His personality differs much from the rest of the men on the show as he prefers to ask for women’s consent before initiating anything.
Jordan Patrick Smith - Ubbe
Jordan Smith is a Scottish-Australian actor with an irresistible and charming accent. After several guest roles, Smith was finally given the role of Andrew Robinson in the soap opera Neighbours.
The actor then appeared in the film Unbroken, the historical drama Banished, and of course, Vikings.
Karen Hassan - Therese
Karen Hassan is a Northern Irish actress, known for her playing the role of Lynsey Nolan in the series Hollyoaks. She most recently nailed the lead role of Aidie in the gripping feature film Cellar Door.
She’s also set to appear in the RTE comedy Finding Joy as the character Sarah.
Dianne Doan - Yidu
Yidu, known to be a very enigmatic woman, is first seen in Season 4 as a servant among slaves in Kattegat.
Though she wasn’t the only Asian in the group, her unique look attracted Aslaug, who eventually purchases her. Her foreign looks later on attracted Ragnar as well.